How much does it cost to fix Worcester Bosch error code FAULT POINT B?

Typical repair cost for the Worcester Bosch FAULT POINT B fault is £120-250 including labour.

FAULT POINT B High

Worcester Bosch FAULT POINT B Fault Code

Q: What does the Worcester Bosch FAULT POINT B fault code mean?

Your boiler is receiving a signal to turn on but is failing to initiate the heating process, indicating a breakdown in communication between your thermostat and the boiler's internal controls.

Also written as FAULTPOINTB — same fault.

The Worcester Bosch FAULT POINT B fault code means: your boiler is receiving a signal to turn on but is failing to initiate the heating process, indicating a breakdown in communication between your thermostat and the boiler's internal controls.. It appears on 2 Worcester Bosch models in our database.

Technical description: Demand light only with a system boiler demand and user control set to maximum

Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Worcester Bosch models that show the FAULT POINT B fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Worcester Bosch FAULT POINT B fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026